masury



A. F'. MASURY v Sept.v 22, V1931. PRIVE FOR MOTOR VEHWPES Re. 18,206 I origin-{1- Fileduun 17;' 1927 5 Sheets-Sheet l f ATTORNEYS A. MAsuRY DRIVE FOR MOTOR VEHICLES Re; 18,206 -5 Sheets-Sheet 2 sept. 22,1931.

Original Filed June 17. 1927 v- INVENTORI v Ygffezmag B Jiu/,4. al TTORNEYS.

- A. F. MASURY Sept. 22, 1931, DRIVE FOR MOTOR VEHICLES- original Filed Jupe 17, 1927 5 Sheets-Sheet 5 1 v lNvENToR kann! sept. 22, i931 UNITED; STATES PATENrfoFl-lcs AII'B'ED l'. IASUBY, 0l m YORK, I. Y., SIGNOR T0 INTERNATIONAL AIID'I'OB conm, or Naw Yoan. N. LA conrona'rron or nnmwm A.

`Dna-vir. ron.' moron vaincus 014111111 I0. 1,791,138, dated February 1981, Serial H0. 199,489, Med June 17, 1827. Application reillue led July 23, 19 31. `Sellal lo. 558,678. f

One of the disadvantages incident heretofore in the production of six wheeled motor vehicleshaving-dual rear'axle drives was the necessity of designing anew the parts for the '5 axle drives.- The standard pa'rts lmanufactuned for use with the ordinary single -rear axle drives could not be used. The. production'of parts for the dual rear axles, therefone, required the expenditure of considerable Intime and money for additional dies, tools, fixturesr etc.

It is, then, the principal object of this invention to so design the parts for a rear axle that `they may beiused interchangeably in l5 either single or dual rear axledrives. Ac-

cordingly, itis proposed to form the shaft, u n which is mounted the pinion drivingthe differential` ring gear, as a hollow tubular member in which'may be journaled another solid shaft for ya purpose and in a manner which will be more apparent hereinafter.

It is a further object 'of the invention to provide means whereby the differential between the two pairs of driving axles may 25. be mounted at the rear of the forward of the pair instead'of being mounted in front thereof, as has' heretofore generally been the practice.

When used in al single rear axle drive the Y 80 hollow shaft above referredto is journaled freely in bearings at two points in the axle i housin The solid shaft, disposed within the holow member, is connected at one end to .the transmission shafting ofthe vehicle and at its 'other end to the hollow shaft, so that 'the path of power will be from vthe transmission shafting through the solid shaft to the hollow shaft and so to the diierential ring gear which meshes with a driving pinion mounted upon the hollow shaft.

When used in a dual rear axle a hollow shaft member is journaled freely at two pointswithin the forward of the two rear axle housings andthe solid member, journaled therewithin, is connected at one end to the `transmission shafting of the vehicle and at its other end to a dierential planet pinion carrier, thedierential being mounted at the rear of the two axle housings. One element fof the dierential is then connected to an end of the hollow 'shaft member while the other is connected t'o the shafti for the rear of the two'pair of axles, a ho ow shaft member being used to 'drive the rearward ofy the pair of driving wheels, one driven element of the first named differential being conneeted directly to the hollow shaft in the forward driving axle and the other being .connectedto the shafting for the 'rearward driving axle.

For a fuller understanding of the nature of the invention reference is to be had tofthe following detailed description thereof read in connection with the'accompanying drawings, in which: ,4

Figure 1 is a view in side elevation of a dual rear axle drive according to the in-4 vention.

Figure' 2' is a sectional viewv through an axle housing showing the invention as ap'- plied to a single r'ear axle drive. i

.Figure 3 is a view partly in section of` adual rear axle drive showing the invention applied thereto, parts being broken away inthe interest of clearness.

Figure 4 is a view in detail .of the hollow shaft member. f Y Figure` 5 is a view in detail of the solid shaft member. l v Figure 6 isa planv view of/a dual rearaxle chain drive, parts of the axle housings vbeing broken away to show the interior thereof.

It will be understood, as the description proceeds, that the invention is equally applicable for 'use in connection with rear axles whether they be sprung or unsprung with respect to the chassis frame of the vehicle. Hence,`the invention has been illustrated'in different views both as applied to situations in which the driving axies are sprun with respect to the chassis frameand in whlch'the driving axles are unsprung with respect to the chassisframe, such as, for instance, chain drives. It is to be understood that-so far as the invention is concerned the relative parts may be used interchangeably, whatever the mode of sus ending the driving axles from 'the chassis rame. I

There has been illustratedin Fi dual rear axle drive in which the re 1 a ousings a, b, for lthe differential and driving axles,

. axles.

are sprung with respect to the chassis frame- 'c. At the rear of the forward of the two meshes with Ithe hypoid ring gear. f of the ion ,and the gear rmrlgear ff through the pinion f.

- axleI sections a.

differential for the wheels driven by the live The hollow shaft member e has journaled therewithin the solid shaft g which is splined at one end g for connection `with the transmission shafting w as by means ofthe sleeve w.

The other end `g2 of the solid shaft g extends through the hol` low shaft e and has mounted thereupon the carrier dfor the planet pinions d2 ofthe differential between the forward and rearward driving axles. Mounted .'upon thev splined end e of the hollow shaft e is the gear d which constitutes one element of .the di'erentiah the other gear d* thereof bein carried with the short shaft section d whic is connected to the universal joint d. The universal joint d is connected through the short shaft section d with another' universal 'oint d? which, in turn, is connected to a sp 'ned end 'e' of another hollow'shaft membere, as by means of the sleeve d. The hollow shaft member e for the rearward vof the air of driving axles is journaled within the ousing b as by'means of the bearings b',

.b, and has mounted thereupon the s lined pinion f which meshes with the hypoi y' ring gear f of the differential for the live axle sections b. Thus, wer is delivered by theY transmissiontot esolidshaftsectiongwhich carries the differentialV planet pinions d, at which int the power is divided between the ars A and d, the gear d being carried. with the hollow sha-ft section e which drives the diierentialringdgear f through the pin' d* being carried with the sha section d which, through the universals d, df, drives the hollow' shaft section e,in the rearward axle, which, in turn, drives the e same arts'may be used for a le rear axle dnrve, as shown in Figure the case of a single rear axle drive, however the solid shaft sect-ion g, which is eo at its end g with the ton shafting Has-hymaans of sleeve a', is keyed at ltsiend g to a ag'ed'hub h. The hubjltis boltved to the sleeve h which is carried Jwith thel flanged end a of the hollow e.` Thus,\

ispo@- power is delivered bythe transmission shaftl there is shown in Figure 6 the manner in' which the differentials between the axle sections a, a,`and b, b, are drivenby the ring gears f and f". The ring gear f', for instance, has mounted thereon the carrler f* for the planet pinions f which mesh with. the bevel gears f, f7. The bevel gears f are carried with the live axle sections as' a, and the power supplied to the ring gear is thus divided between the respective wheels. The power delivered tothe ring gear fa is similarl divided between the live axle sections b", a y a dierentialmounted with the ring gear f in a similar manner.

In order to keep the direction of with the ring gear f is fdrward of the liveaxle sections b. Of course, the relative positions of the housings a and b will also be .d

reversed. I

The details of design of the shaft mem- -`bers are apparent from the drawings. The hollow vshaft member e` is formed with' projections as at e', which serve to maintain the hypoidl pinions. in propery position, and 1s splined at its end es to receive one race of a bear' as k and is grooved as at e* to receive e retainingring la for the bearing. The other end e of the hollow shaft. is splined and threadedv to adapt it for connection with the sleeve h', the diierentxal gear da,

be. The solid shaft g is splined at its end g lto adapt it for connection with the trans-4 mission shafting as by means of the sleeve w' and its end g is threaded as at g and provided with a keyway g' `to adaptv it for connection with the hub h' or the diierential planet pinion carrier d', as the case may be.

There have 4been provided means Awhereby the same. driving axle members may be` used in interchangeably for either single or dual rear axle drives, The parts themsel ture and the saving fromthe standpoint of production' will be apparent, since the necesty for manufacturing parts' of or the universal joint d", as theI case may ves are simple and easy ofv manufac" lll design for sin le and dual drive axles, respectively, has en eliminated.

.Various modifications in the design and arrangement of parts may be made without departing from the spirit or sco e of the invention and nothing which has n Said in the foregoing descri tion is intended as a limitation except as in icated in the followin claims.

hat I claim is:

1. In a drive for a plurality of axles, a differential, a solid shaft for transmitting power to the differential, a hollow shaft, a

ousing for journalin the hollow shaft and one of the axles, a soli shaft journaled within the hollow shaft, drivin connections between the hollow shaft an the differential and the last named axle, a hollow shaft similar in construction to the first hollow shaft, and interchangeable therewith, a housing journaling the last named hollow shaft and another of the axles, and driving connections between the last named hollow shslift and the differential and last named` ax e.

2. In a drive for a plurality of axles, a differential, a solid shaft for transmitting ower to the differential, a hollow shaft, a ousin for journaling the hollow shaft and one o the axles, a solid shaft journaled within the hollow shaft, means on one end of the hollow shaft to transmit power thereto, driving connections between the differential and the power transmitting means on k35 the hollow shaft, and between the hollow 'shaft and last named axle, a hollow shaft `similar in construction to the first hollow shaft, a housing for journaling the last named hollow shaft and `interchangeable n therewith and another of the axles with the end of the hollow shaft carrying the power transmitting means adjacent the correspondling means of the -irst hollow sha-ft, and drlving connections between the differential 5 and power transmitting means on the second hollow shaft, and between the second hollow shaft and the last named axle.

This specification signed this 3rd day of July, A. D. 1931. 50 ALFRED F. MASURY. 

